This exhaust system has two 3" mandrel bend pipe along with 4 high flow
resonator with two 3" inlet and outlet Magnaflow stainless steel muffler.
The exhaust tips are 3.25" Magnaflow stainless steel. I used four
resonators because I do not want my Lexus LS400 sound like a Ford Mustang.
This video/audio clip you can hear the blow off valve too.